Aldos Pianito - MicroStudio - description from Softdepia.com:

Pianito MicroStudio is a piano synthesizer and drum machine tracker with 24 tracks (8 percussion, 8 midi instruments, 8 wave FXs). You can map your keyboard to any of the MIDI 128 instruments or to 48 simultaneous percussion instruments for interactive play, while the rythm/song that you have created is played in the background. It's intended for kids and adults that find professional music software too complex or expensive. Now you can play while recorded songs are playing, so now you can be your own orchestra. Please visit http://www.aldostools.com/piano.html to download the trial version. NOTE:Requires VB5 runtime dlls and DirectX7 or later.

Aldos Pianito - MicroStudio is a "Free to try" program. You can download and try it for an evaluation period.